X-RAY COMPUTED TOMOGRAPHY APPARATUS, MEDICAL IMAGE PROCESSING APPARATUS, AND MEDICAL IMAGE PROCESSING METHOD

摘要

An X-ray computed tomography apparatus includes an X-ray tube, an X-ray detector, a volume data reconstruction unit, a lung field region specifying unit, a discrimination unit, an image generation unit, and a display unit. The volume data reconstruction unit reconstructs first volume data of a chest region of an object based on an output from the X-ray detector. The lung field region specifying unit specifies a lung field region of the object in the first volume data. The discrimination unit generates second volume data in which a low CT value region is discriminated from a region other than the low CT value region in the lung field region. The image generation unit generates an image representing a two-dimensional distribution concerning an existing ratio of the low CT value region to the lung field region based on the second volume data.

主权项

1. An X-ray computed tomography apparatus comprising:
an X-ray tube configured to generate X-rays; an X-ray detector configured to detect X-rays generated from the X-ray tube and transmitted through an object; a volume data reconstruction unit configured to reconstruct first volume data of a chest region of the object based on an output from the X-ray detector; a lung field region specifying unit configured to specify a lung field region of the object in the first volume data; a discrimination unit configured to generate second volume data in which a low CT value region is discriminated from a region other than the low CT value region in the lung field region; an image generation unit configured to generate an image representing a two-dimensional distribution concerning an existing ratio of the low CT value region to the lung field region based on the second volume data; and a display unit configured to display the image representing the two-dimensional distribution.